Hi FDP

>> Is there a way to autocenter the canvas, or have a mini zoomed-out preview of the canvas? <<

2 finger double tap on trackpad will zoom to mid-range, however it does not center the canvas.
Max is aware of this and says he'll will revise for next version.

http://moi3d.com/forum/index.php?webtag=MOI&msg=7713.808

Hope this helps
James